What social share plugin is used for wpmudev blogs?

This screen cap http://ovo.li/N86tHh shows the social share buttons on wpmudev blog.
Looking at source it seems to be coming from wpmudev floating social plugin. The info for floating social does not show any option for static positions only floating. Can floating social provide multiple types of social share bars ?

Would you know which free social share plugins would automatically chose the shortlink if present ?
I am trying out wp bitly plugin. When you click the short link in the editor it adds
<link rel="canonical" target="_blank" href="https://domain/hello-world/" />
<link rel='shortlink' target="_blank" href="https://short/2iaZ8ci"/>

I was trying a plugin called mediabuttons and it does not choose the shortlink only the canonical.

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